Propeller



Jan. 12 1926. 4

A. GARCIA PROPELLER:

Original Filed March 27, 1924 INVENTQR Gmdmkm BY Y I i "A'fr m svp ethereof.

* ranged for radial mevemena 0's To ai'Z whm '52 may mower-n:

Be it knownizhet L Ammziie GARQEA, zen 0% Spain, residing at Brooklyn.in the ceuziisy 0f Kings and State of New Ycri:

haveinvented. certain new and useful 1mpreveie'eiits in Prcpeiiers, ofwhich the 0 iowing' a specification.

'Eiiis invention reiaies in boat prcfgeiiers of the helical c2 screw 11e, the invention e having more particular lfififinfi' to a 1:130-

peiiei' arranged in present jvariabie em face, whereby the prepeiier canbe more suit ably edjusteci to the beat and engine "00 which is applied.ihe invention having i0? en abject; i319 provision of a novel prcpeiiei'of this type which can be readily ad iustcci to very iis eiiectivesurface.

F01 ZEi'lTiilQI' comprehension ef 'izi'ie i venhem, and of the ce g-ectsand. iECiV ntegesi Lhereci, reference will be had to eiie foiicwingciescripticn and ecccmpan g ing' drewiiig, and to the ppendeii claims inwhich the various novel features 0% the invention move pertieuieriy setforth.

Fig. 1 of the drawing is a sectional View showing a twc-bieciefi.propeiier with the in" venticn appiieci' therein this being takentmnsvereeiy of propeiier axis end along the line 11 of Fig. 2.

Fig. 2 is an axial sectional view 01 this prcpeiier.

Figs. 3 and 4e ere face views ef three and four biecied propellersrespectively having the invention applied thereto.

Fig. 5 is a side View 01" Fig. 3.

Referring now to-the drawing the refer ence numeral ineiicetes the hubof the prcpeiier and the reference numemi 11 the shaft 011 which the"propeller is mcun'teei. The blades of the prepeiiei. are siicwn at 12and eye formed inizegi'ai with the hub. Farmed in the outer end of eachof these iiiaciee is e recess. or $101; which is entered a-adiei-iy inicihe Made from the outer ecige These Sie e 01 recesses 14: 1m 0?? lengthequei. t0 the iexigzii cf 'the blades cireimiferentiaiiy cciieiere'i.

Freely incuiited in each ef the sictscf receases 14 15 e ieei or pietewhich 1: 2.1"

edge-r in said recesses, mini which may to project: 5 diiferenteiieteiieee beycncircumferential 0f: the b 1 01 decrease the area of theEileen? 'Wi 1 sired. Fixed to the inner 0i j 16,.midway between theinner ends of ihese rode heads 18 winch engaqe cam prqecticns on ends ofthe letter. 18 e mi 17 which ex'teiiiis ireciieiiy inward through theblade and through the hub. the having emerged iiie shaft 11 ehe needs 18being held in cnmeans 01 e coiied c alisicn springs 20 (i reds and bearon iiie heade these expzi lsicn springs being; ecwzmncdat'cd m the enimr1 inner ends 21 0'? 5 w, t icde'; extend. it is to be understood 0icourse iiizii iiieec springs 20 wiii be of sufiicien z sti-czigih toi'eeisi, we

N1 g} 21 v e '1" 0 m mini 1e P1010 ,ei ie iem Aug. 0 ecccnuwodaie thecam prc ections 19 the imi) propeller may be secured. the shaft 1.1 by

men; m. the prcigei ei c1; the screw 25 being h re min 10- seed throughshaft.

ggegei'iieiit with these came project-ices by which surround the s.

the pa" urea in the blades iiii'cugii which the centrifug fierce(.iQVGiii 1?; formed with ennu I recese The suiiabic means peimi'iting0i: at'lguier use the hub of the pl'UpGliK-Bi end beefing the As W thepicb l degree 01 Ci'im] er the leave iiie bciiies of fee Hades. In. 1 bevaried and in come-- quence the surface or 0f the proeiiei" is verieci.Y? ."iie I have iiiiiice teei ihe :n'cpeiiw being; farmed of 21 singleces'izing, it W'iii be 'imciei'stooci that in 111em1-- iecturing fineprcpeiier Wiii be convenient-1y "formed in bi-v0 hem es which are latereiicwn tee invensecureci iogehiier.

in Figs. 3 and I {W ticn e ppliefii respectively if) three and. 12cmbieded prcpeiiers. ii: iJ-Zing untiersizcci that each biade is pi'cided. in eciciition Lhe w shims. With- 2. red

4 2' 1- i5 and may 1' g cm Whiie 1 have t ii at me .iifiQELiliOElSimgiii' be m 1011i (iepei'ting iwrom iiie s defined in .fl z]?! MingeiluS eeecni J and G aeme blades, a shaft on which said ropeller ismounted, and cam elements on said shaft for retaining said leaves inradially adjusted positions.

2. In combination, a propeller comprising a hub and blades, radiallyadjustable leaves in said blades, a shaft on which said propeller 18mounted, cam pro ections on said mea re shafts, and rods connected tosaid. Leaves and extending radially inward tiimug blades and hub toengage the sai projections.

In testimony whereof I have affixed my signature. 1

